Dr. Haussam El Enin. FRCS.
- What is Hand assisted laparoscopic surgery (Hals) ?
- What is Hand port ?
- What are the Indication of HALS ?
- What are the benefits of HALS ?
- What is Future Prospect of HALS ?
- What are the Limitations of HALS ?
What is Hand assisted laparoscopic surgery (Hals):
In hand-assisted surgery, the surgeon can insert a hand through the small incision via a special pressurized sleeve. In this procedure, the surgeon makes a small incision in the abdomen and inserts his hand into the patient's body, using it for sensory perception and to guide the surgical instruments he manipulates with his other hand while observing the entire procedure on a TV screen overhead. With both a hand and laparoscopic instruments doing the work, the surgeon has more control over the operation and sense of depth and sensation of touch than can not be gained through the lens of a camera. The large organ can be removed intact, making it possible to evaluate the cancer. The hand-assisted approach is also considered better for surgeons who are still learning laparoscopic techniques. Hand-assisted laparoscopic surgery is the use of the non-dominant hand intra-abdominally, together with the laparoscopic instruments in the right hand.
What is Hand port:
"HandPort(TM)" system allows surgeons the ability to insert a hand into the patient to gain a tactile sense during laparoscopic surgical procedures. This is a real improvement over previous techniques which precluded a surgeon from gaining information through touch. commercially available to date and approved by the FDA are Dexterity Device, Intromit, Hand port and Omni port. Omni port has been extensively studied by Europe University, Ninewells Hospital as well as being clinically applied with success in the repair of abdominal aortic aneurysms in Germany and USA. Pneumoaccess bubble is one of the great advances by Cuschieri and Shapiro 1995, allowing complete visual access with the hand inside and pneumoperitoneum safely maintained.
What are the Indication of HALS:
Hand assisted laparoscopic surgery is a new addition to minimal access surgery. It has a great potential. Many surgical operations, from the simplest to the very complicated, are greatly facilitated by the introduction of the hand into the laparoscopic arena. It is therefore purposefully designed in assisting the surgeon for complex intra-abdominal operation to be done with total laparoscopy. It stimulated many vascular surgeons throughout the world to reintroduce it into repair of complex and challenging abdominal vasculature. The nephrectomy, Splenectomy, Colorectal surgeries are nicely performed through hand assisted technique.
What are the benefits of HALS:
- Restored tactile feedback.
- Preserving the main idea of Minimal Access Surgery (MAS).
- A mini-laparotomy hand Port incision.
- Reduced conversion rate in total laparoscopy.
- Enhanced safety and efficiency allowing the completion of the operation with a hand inside.
- Maintenance of the intra-abdominal pressure to facilitate the better view and magnification of laparoscopic telescope.
- Improving the steep learning curve for inexperienced general surgeons.
- Promising reduced cost-benefit ratio
What is then future Prospect of HALS:
There are general and specific limitations, awaiting multi centre prospective randomized trials in order to compare HALS in various major intra-abdominal procedures with the traditional open surgery.
What are the limitations of HALS:
Limitations can be summarized to:
- Possible impaired tactile feedback through a lengthy complex procedure and
- Minor ergonomic restriction is due to the crowdness of the hand with the instruments.
- Not wells accepted by patient and surgeons because there is already a mini laparotomy.
- Cosmetically inferior than total laparoscopic surgery.